diff --git a/src/phantom-data.md b/src/phantom-data.md
index 32539c2..031e0bd 100644
--- a/src/phantom-data.md
+++ b/src/phantom-data.md
@@ -70,7 +70,7 @@ that:
 use std::marker;
 
 struct Vec<T> {
-    data: *const T, // *const for covariance!
+    data: *const T, // *const for variance!
     len: usize,
     cap: usize,
     _marker: marker::PhantomData<T>,